Fastening-inserting machine



Jan. 2, 1951 P. E. BURBY 2,536,350 FASTENING-INSERTING MACHINE Original Filed Oct. 8, 1947 Y 6 Shee-tsSheet 1 Inven for Philz}? E. Burby y 1 ey Jan. 2, 1951 P. E BURBY FASTENING-INSERTING MACHINE 6 Sheets-Sheet 2 Original Filed Oct. 8, 1947 ln-venfor' Philip E Barby P. E. BURBY FASTENING-INSERTING MACHINE Jan. 2, 1951 6 Sheets-Sheet 3 Original Filed Oct. 8, 1947 [120012 for Phi/2p EBz/rby Jan. 2, 1951 P. E BURBY FASTENING-INSERTING MACHINE Original Filed Oct. 8, 194'? 6 Sheets-Sheet 4 e A54 I66 /62 Invenfor O PhiZz'pEBL/rby he Atz ney Jan. 2; 1951 P. E BURBY FASTENINGINSERTING MACHINE 6 Sheets-Sheet 5 Original Filed Oct. 8, 1947 F t-L96 /0 Inventor Phi/1p .E. Bufiby P. E. BURBY FASTENING Jan. 2, 1951 -INSERTING MACHINE 6 Sheets-Sheet 6 Original Filed Oct. 8, 1947 Uu WM w W Um, h.

Phz By Patented Jan. 2, 1951 FASTENING-INSERTING MACHINE iPhilip E. Burby, Beverly, p-Ma-ss., assignor to United Shoe Machinery Corporation; Flemington, N- J., a corporation. of New Jersey Original application October 8,1947, Serial No. 778,661. Divided and this application Septem-- .:ber 29,1948, SerialNo. 51,689

17 Claims.

This invention relates to fastening-inserting machinesthe presentaapplication being a division of a copending application, Serial No. 778,661, filed :on October 8, 1947, on which Lettars-Patent No. 2.516.954 were granted on August 1.11950. The invention is herein shown as applied-to a machine which inserts staples in the margin-of a shoe-upperand the lip of an insole to iasten ac toe: binderwire in place in the lasting-oi thetoe end of a weltshoe, in general ac- :cordancewiththe d sclosure of United States Letters .Batent No. 2,420,684, granted on May 20, 19471011:anapplication of C. A. Robinsons. It is to .be-unders-tood; however, that theinvention is not lim-itedgto machines .for operating on shoes or to;machi-nes-for inserting fastenings in the iorm "oi staples.

The invention provides novel means for op- ;eratingdifferent portions of a fastening-insert- ;ingmechanism in proper time relation to each -;other ;bymovement -.of a :single reciprocatory :member. Inthe: construction; shown the fastening-inserting mechanism includes a throat mem- Lber-forrned toyguide thefastening and movable toward the work and a driver movable to drive 1.the-iastening,; :and .for thus moving 'both the throat-"member and the driver there is provided pa. reciprocation! member associated with which is novel controlling means for causing first the =.throat member andlater the driver to be operated; by movement of; the reciprocatory member iin -one gdirection. uMore particularly the controllingmeans comprises a device which initially .acts in opposition to the force of the reciprocaitory memberto hold thedriver against movementjbythismemberlout thereafter releases the drivertomausedtthen to' he operated by-iurether :movement :of the reciprocatory member. The 1 controlling device acts similarly, upon re- .verse movement of the reciprocatory member,

:to prevent returnmovementaof the throat member until return movement oi'the driver has been substantially completed. In the construction shown the reciprocatory member is a fiuid-operatedpiston,buttheinvention is not limited to and combinations-of parts, will now be moreparticular-ly describedwith reference to the accompanying drawings and thereafter pointedout in the claims.

In the drawings:

Fig. 1 is a view in front elevation of the .upper portion ofthe machine to which the invention isherein shown as applied;

Fig. 2 is a plan view of the structure shown inFig. 1, with parts broken-away;

Fig. 3 is a view of the left-hand portion of the structure shown in Fig. 1, partly in .front elevation and partly in section on theline III-III of Fig. 2;

Fig. 4 is a section on the line IV--IV of Fig. 2;

Fig. 5 is aview substantially in right-hand side elevation of a wire-controlling device shownin Fig. 3;

. Fig. '6 is a view in left-hand side elevation, showing oneof two controlling mechanisms associated respectively with different fastening-inserting mechanisms included in the machine for :causing them to move downwardly and upwardly;

Fig. '7 is-a section on the line VII-VII- oi -Fig. .-6;

Fig. sis an exploded view ofthe right-hand fastening-inserting mechanism;

Fig. 9 is a sectional view of thesame mechanism on the lineIX-JX of Fig. 1;

Fig. 10 is a view mainly in front elevation, showing a portion-oi the right-hand'fasteninginserting mechanism and illustrating its relation to a shoe when it first engages the shoe upon its downward movement;

Fig. '11 is a view in front elevation of the righthand fastening-inserting mechanism and parts associated therewith, with the parts as they ap- ;pear after the forming of a staple but before 'it is driven;

Fig. 12 is a section on theline XII-XII 0f Figll;

Fig. l3.is a section on the line XIII---'XIII Of .Fig. 9;

-Fig. 14 is a view similar to Fig. 11 with the parts as they appear at the end ofthe staple- :driving operation; and

Fig. 15 is mainly a plan view, with parts removed and with other parts broken away-showing a staple as it appears in the shoe with'the staple driverat the endof its driving movement.

As disclosed in detail in the above-mentioned Letters Patent No. 2,420,684, the machine shown is a power-operated toe-lasting machine having apair oi toe-embracing wipers 2 (Figs. 1 andlfi) a pin 26 (Fig. 3).

which wipe the margin of the toe end of a welt shoe upper into lasted position over the feather and against a welt-attaching lip a on the insole b. To position the shoe in proper relation to the wipers there is provided a device which, as distinguished from the above-mentioned disclosure, is constructed substantially as shown and described in Letters Patent No. 2,385,414, granted on September 25, 1945, on an application of E. A. Holmgrens. It comprises three pins 4 arranged to engage the bottom face of the forepart of the insole to determine the position of the shoe heightwise and with respect to tipping movements and a member 5 which engages the inner face of the lip or around the end and along the sides of the toe to position the shoe lengthwise and laterally. The shoe is clamped against the lower ends of the pins i by upward movement of a toe rest 8. The machine performs a cycle of operations corresponding to one complete revolution of a cam shaft iii (Fig. 6), in the course of which cycle, by means not shown in detail, a binder wire 0 (Fig. 15) is applied around the toe to secure the margin of the upper in lasted position against the lip of the insole. At a predetermined time, when the wipers 2 are holding the upper in lasted position and are also holding the wire pressed against the upper, the cycle of oper ations is automatically interrupted, and during the ensuing pause in the cycle a pair of fastening-inserting mechanisms [2 (Fig. 1), which may be termed stapling units, are operated by fluidpressure means to form staples and to drive them at the opposite sides of the shoe bottom through the margin of the upper and the lip of the insole to fasten the binder wire to the shoe. Thereafter the machine resumes its cycle of operations to return various parts to starting positions.

Each stapling unit 52 includes a bar l4 arranged to extend widthwise of the shoe in infast on one end thereof an anvil member i6 arranged to engage the insole and to clinch the legs of the staple at the inner side of the lip a.

Each bar M, in the construction herein shown,

is supported on a casting It by means of a pin 29 and a link 22, and each casting is is supported on a horizontal rod at to which it is secured by The rod. Ed is mounted for turning movements in one end of an arm 25 which supports it and which is mounted at its other end for downward and upward swinging movements on a rod so supported in cars 32 and 34 formed casting is may swing about the axis of the rod 2% to carry the stapling unit E2 in directions widthwise of the shoe and may move bodily in downward and upward directions as permitted by swinging movements of the arm 28 on the rod Normally the weight of the casting and of the parts thereon maintains it, with respect to movement about the axis of the rod 24, in a position determined by engagement of a roll 40 mounted thereon with a vertical face 42 on the head casting 36. Pivotally mounted on each rod 35 is a lever it one end of which is arranged to underlie andnormally to support the rod 24 and the casting 8 thereon, the other end of this lever being connected by a link 38 to one arm 48 (Fig. 6) of a bell-crank lever 54) pivotally mounted. on the frame of the machine. The other arm 52 of this bell-crank lever has thereon a roll 54 engaged by a cam 56 fast on the cam shaft lo.

A spring 58 connected to the arm 52 holds the roll' as at all times against the cam 56 and through;v

4 the bell-crank lever to, the link 46 and the lever 45 supports the rod 2'3 and the casting 28 normally at such a height that the anvil member 15 of the corresponding stapling unit 52 is positioned at some distance above the bottom of the shoe when the shoe is clamped against the posi tioning pins 4 by the toe rest 8. Prior to the previously mentioned pause in the cycle of operations a rise 65 on the cam 56 swings the bellcrank lever 59 in a counterclockwise direction with reference to Fig. 6 and thereby swings the lever 44 in the direction to permit downward movement of the casting E8. The casting is thus moved downwardly by gravity until the anvil member H3 engages the insole, the stapling unit l'2 being thus positioned heightwise of the shoe as determined by the engagement of the anvil member with the insole. By reference to Fig. 10 it will be seen that when the anvil member first engages the insole it is positioned a short distance inwardly from the lip c. of the insole, thus insuring that it will be located farther inwardly than the lip in operating on shoes of different widths. the lever is is a link 62 having therein a slot 64 into which extends a pin 65 fast in the casting 18. It will be understood that as the lever 44 is operated as above described to permit the casting I 3 to move downwardly to the position determined by engagement of the anvil member [6 with the insole, the link 62 and the pin 65 move relatively to each other until the pin is substantially at the lower end of the slot 64, after which the lever as by its further movement acts through the link 52 to swing the casting is and the stapling unit i2 about the axis of the rod 24. In this manner the anvil member It is moved outwardly into engagement with the inner face of the lip of the insole, its outward movement being limited by the lip. Any further movement thereafter of the bell-crank lever to by the rise 5% on the cam es serves to compress a spring 68 (Fig. 6) which is mounted in a recess in the lower end of the link 45 and is engaged by a pin 10 carried by the arm 8 and movable upwardly i this recessJ It will be understood that there are two such cams 5t and mechanisms associated therewith for controlling respectively the two stapling units.

Formed on each of the rods 24 are a plurality of teeth 12 (Figs. 2 and 4) which extend around it and are engaged by a pinion 74 rotatable in a bearing in the arm 28, the pinion having inte- 'gral therewith a hand wheel 16 which engages a bearing face on the arm. The pinion is held in place by a screw is which is threaded in the lower end thereof and extends through the arm, the head of the screw engaging a washer which bears on the lower face of the arm. It will thus be seen that by turning either of the pinions M the casting I8 associated therewith may be independently adjusted with the stapling unit l2 thereon in directions lengthwise of the shoe as may be required by shoes of different sizes. To hold each stapling unit in adjusted position there is provided a spring-pressed pin 82 mounted in the arm 28 and having a rounded end arranged to enter any one of a series of corresponding recesses 84 in the hand wheel E6.

The two stapling units l2 are constructed in most respects as disclosed in the previously mentioned Letters Patent No. 2,420,684. Slidingly mounted in a guideway 86 (Fig. 8) in the inner end portion of the bar [4 of each unit is a staple-guiding throat 88 which includes a block 9g and another member 92 secured to the block Pivotally connected at its upper end to V and extendingmutwardly along-the bar 1:4 -.-be- .yond-ithe. block. .1 Secured to the member .92 in spaced :relation 'totjthe block :95 is a member which serves. as an outside rformerandcby, moving inwardly 1 toward the 1 shoe with the throat .iiorms -a staple over an inside former fitentendingthroughaslotilfi (Fig. 9) inthe, member 92. Anenlargedportion of the inside former is slid-- inglyqmounted in an opening in one. side of the bar I4 andina cap:member Ieflsecuredto the side of thebar and extends into a slot Hi2 formed 'inone side of the :member92. A spring Hi4 presses theinside former inwardly as far: as permitted by' the-engagement of its enlarged portionwith themember 92. Mounted in thespa-ce .betweenthe block 90. andit-he outside former 86 is a small block lflfiwhich is located o posite-the inside former :when the 'parts are. in their initial positions and is provided with r a :slot into which the staple-formingportion of the inside former :extends. A pair-of springs Jtt positioned betweenthe block Iiidandthemember oZtend to move the block inqa direction away from thei-nisideiformer and hold it initiallv ina slot I H3 ((Figs9) rformed in asma l plate I l2 which is secured-to one side of: the bar I4. With the block 'inthis position a s ace-is provided between it and the member'M for thevvire from which the staple-is to beformed and. for the bending of the .legs of the staple about the inside former. In a .manner hereinafterdescribed the wire is caused to enter thissspace, between the outside former .and .one edge of the inside former, through a nipple i i which is mounted in an onen ngin the bar M. The length of wire reouired for the staple is severed from the rest of the wire,'in response tothe movement of the throat 8B the outside former inwardly toward the shoe, by a ,cutterIIG which is-fastened to thetop .of the (outside former and has a cuttingedge-substam tially contiguousto thelower end of t e nipple .I M whentheparts are in starting positions. In response to themovement of the throat and the outside former,..as soon as the sta le is formed,

.theinside. former is-forced outwardly by eneage- ,ment of. thememberQZ therewith at one end of thesslot I82 in thismember toprovide a clear .pathior-a staple driver H8 which moves in guideways formed .in the members Bi! and 2 Also in response to the same movement the 1 :block 455 is forcedinwardly against the resistanceof thesorings :8 .by engagement of the plate H2 therewithat one end of the slot lid-in the plate to close thespace between th block and-the member92, so that the block will assist in guiding the formed staole, the block being provided with a staple guideway arranged to aline with the guideways in the members so and S4.

Operative movement is imparted to the throat .88 and the outside former 94 of-each sta ling unitJZ-througha toggle I! (Fig. l) comprisinga'pair of links I22 and I24 which'are pivotally connected together by a pin H6. The link 422 is pivotally connected to a stud i128 (Figs. 8 and 9) on the membersz, and the link IMis pivotally connected-to a pin mountedin a block .i32 which is slidingly movable along .a guideway i34 on the :bar M and is controlled by a spring E35 mounted in -a block I38 secured to the outer end of the bar. This spring normally holds the block i32 inza position determined by .its engagement with'a-shoulder Mt on thebar Hi. When the toggle 12H isustraighten d, by .means hereinafter described, the-throat 8B and .the resistance of the spring I36.

shoe. of the toggle 552 permits th s distance to be :thenoutside gformer 2194 are moved inwardly ito-- ward the shoe, the throatbeing moved-'into-ena ementwith the upper in the angle-between thefeather and the lip of the insole, .as illustrated in Fig. 11. .In this operation the .wire is severed by thecutter II6,'the outside :former 94 ,formsastaple. over the inside former tithe in side former is retracted and the block IilBis moved inwardly into staple-guiding position in the, manner hereinbefore explained. In response .to resistance. of the shoe to further inward movement of the'throattii the block I32 is moved outwardly against the resistance of the spring A35 by further straightening of the toggle the straightening of the toggle being positively lim ited by engagement of its link I24 with a stop I42 on one side of the bar l4. As the throat is .thusmcved inwardly, a finger Md is operated yieldingly through a spring I46 (Fig. 9)'by a stud Mil on the outside former 94 to position the 'binder wire 0 (Fig. 15) inproper relation height- --wiseof the shoeto the staple-guiding passagein :thethroat, in the same manner as disclosed in Letters'P-atent No. 2,420,684.

Each stapledriverilii is fastened to a driver bar I5IHFig. 9) whichis movable alongaguide- Way in the bar it. The driver bar is operated through another toggle H52 comprising a link 554 (Fig. 11) pvotally connected toa pin .156

in the driverbar and another link I58 whichcfor a reason hereinafter explained is a compound iink consisting of twomembers 169 and IE2 ad justacly secured together, the member I60 being pivotally connected by a pn I64 to the link I54 and the member 62 being pivotally connected the member I56 with a stop I65 on the bar I4.

As hereinabove explained, after the throat 88 has been pressed inwardly against the upperby .itstoggle i2il, any further stra ghtening of that toggle, to the limit determined by the stop I42, serves to move the block I32 outwardly against Accordingly, sincethe com ound link l58 ofthe driver-operating toggle 52 a so is connected to the block I32, the drver-operating toggle is adjusted bythis block as determined bythe position of the throat 88 in engagement with the shoe. The limit of the operative movement of the driver H8 is therefore determined in accordance with the position of the throat 3.8, and the staple-engaging end of the driver is located in a definitely predetermined relation to the throat when the driver is at the end of its driving movement. Insurance is thus afforded that the driver will drive the staple precisely the desired distance into the The above-mentioned compound link 58 adiusta ly varied. The two members I60 and IE2 of this link are maintained in a parallel relationto each other by a tongue-and-groove con- .nection M8 (Fig. 12) between them, and they .mits the effective length of the link I58 to be varied, with a resulting variation in the position of the end of the driver H5 vrelatyely ,to the .throatt at the end of thestaple-driving movement.

To .facilitate a precise relative adjustend face IlIi on the member I00.

"end of the lever I02 (see Figs. 1 and 6).

[I94 (see Fig. 14). farther laterally; another finger 2I6 on the arm merit of the members I and I62 there is threaded in the member I62 a screw I14 having a tapered end arranged to engage an inclined The legs of the staple s driven by the driver II8 are clinched by the anvil member It in such manner that they are turned reversely outward into the lip of the insole as shown in Fig. 15.

The two toggles I20 and I52 of each stapling unit I2, for purposes of the present invention, are Operated by a single piston I78 (Fig. 3) movable ina cylinder I30 which is part of the casting I0. Extending downwardly from this piston is a rod I82 on which is formed an enlargement I84 of the same diameter as the piston for engaging the wall of the cylinder to assist in guiding the piston. Below the enlargement I84 are two downwardly extending ears I80 (Fig, 7) provided with bearings for a pin I88 to which is fastened by a setscrew 90 a lever I02 between the opposite ends of the lever. The two arms of this lever extend through vertical slots in the cylinder I80. One arm of the lever is connected by a link its to the toggle I20 and the other arm 'is connected by a link 06 to the toggle I52. The connection between the link I9 l and the toggle I20 comprises apin I08 mounted in an extension of the link I24 near the knee joint of the toggle,

andthe connection between the link I96 and the toggle 52 comprises a pin 200 mounted in the member I62 of the compound toggle link I58 near the knee joint of the toggle. It will thus be seen that the two toggles are operated through the lever I92 and the links E02 and I96 by downoperations of the toggles in such manner that the toggle I20 is operated before the toggle I52. This mechanism comprises an arm 202 (Fig. 1)

pivotally suspended at its upper end on a pin 204 mounted in an ear 200 (Fig. 2) formed on the upper end of the cylinder I80, the arm having formed therein near its lower end a cam slot 208 into which extends the front end of the 'pin I80 (Fig. '7) through a vertical slot in the wall of the cylinder I80. Formed on the arm 202is a laterally extending finger 2I0 the end of which lies initially under the forwardly projecting end of a stud 2I2 which serves as the pivotal connection between the link I96 and one The finger 2i0 therefore initially locks that end of the lever I02 against downward movement when the piston is moved downwardly, thus preventing the straightenin of the toggle I52 while the lever swings about the stud 2I2 as a fulcrum to operate the toggle I20. By the time this toggle wardly (see Fig. 11 Continued downward movement of the piston I78 serves to swing the arm 202 still farther laterally in the direction to carry the finger 2I0 away from the stud 2I2 'while at the same time the toggle H52 is operated to drive the staple, the lever I92 swinging at this time about a stud 2M which serves as the pivotal connection between it and the link As the arm202 is thus swung 'is' moved to a position over the stud 2l4.' Upon reverse upward movement of the piston I18, therefore, the finger 2H5 initially locks the toggle I23 against return movement, so that the'toggle E52 is first returned to retract the driver. Substantially at the end of the return movement of this toggle the reverse movement of the arm 202 by the pin I88 carries the finger 2I0 again under the stud 212 and removes the finger 2I6 from over the stud 2 i 0. By further upward movement of the piston, therefore, the toggle I20 is returned to its initial posit'on. The upward movement of the piston is effected by a spring 2!!! which is seated on a head 2200f the cylinder I and engages a member 222 confined by nuts 224 on a rod 220 extending upwardly from the piston through the head 220.

Operating fluid, preferably oil, is deliveredinto the upper ends of the two cylinders I80 through passages 220 and conduits230 portions of which are flexible to permit the movements of the castings i8. Admission of the fluid under pressure to the cylinders and later release of the fluid therefrom to permit return of the pistons I18 are effected by a valve (not shown) which may be assumed to be of substantially the same construction and controlled in the same manner as the valve 540 shown in Letters Patent No. 2,420,684. That is, the valve is operated automatically to admit the fluid just prior to the pause in the cycle of operations of the machine and after the driving of the staples is returned to exhaust position to permit the return of the pistons. I

By means not herein shown, but fully disclosed in the above-mentioned Letters Patent No. 2,420,684, the cycle of operations of the machine is initiated by electrical actuation of a clutch through which the cam shaft I0 (Fig. 6) is operated, the clutch being later so controlled as to interrupt the cycle for the purpose hereinb-efore explained. After the driving of r the staples the clutch is again electrically actuated, this time automatically, to cause the machine to complete its cycle. In thevmachine shown in said Letters Patent this second actuation of the clutch results from the closing of two electrical switches in response to movements of the stapling units away from the shoe. In the construction herein shown the same result is accomplished by the closing of a single switch 232 (Figs. 1 and 6) controlled by one of the pistons I18. This switch includes a member 234 which is moved upwardly to close the circuit by engagement of the outer end of the pin I08 therewith when the piston arrives substantially at the end of its return movement. The switch 232 thus performs the function of the two switches 668 shown in the above-mentioned Letters Patent.

The wire 20 for forming the staples is supplied from two reels 2255 supported on brackets 238 extending upwardly from the head casting 30. The two strands of wire are crossed so as to aline more nearly with the passages in the nip Each strand extends through a gripper device 220 mounted on the casting I0 which supports the corresponding stapling unit I2. As shown in Fig. 5, this device is provided with a guideway 2&2 for the wire and with a pivotally mounted bell-crank lever 244 one arm of which is held in frictional engagement with the wire by a spring 2% acting on the other arm. The device is so arranged that when the stapling unit is moved downwardly by the casting. I 8 it pulls the wire along with itand when it is moved upward-1y the device slips along the wire, upward movement of the wire being prevented by another similar gripping device 248mountedon the head casting 36. Accord ingly, the wire is fed by the downward movement of the stapling unit and is received withinthe unit ready for the forming of the next staple when the unit is moved upwardly. The extent of the movement of the unit corresponds substantially to the length of the portion of-thc wire required for the staple, but is preferably sufficient to insure that upon upward movement ofthe unit the end or" the wire will be engaged by the lower wall of the guideway 85 (Fig. 8).

The manner of operation of the machine, in so far as it is of interest with reference to the present invention, will now be briefly sum marized. Substantially at the beginningof the cycle of operations the shoe is clamped by the toe rest 8 against the pins 4 in the position further by engagement of the member Ei-with the inner face of the lip of the insole. In the course of the cycle the wipers 2 are operated to wipe the toe end of the upper into lasted posi-- tion with its marginal portion over the feather and against the lip on of the insole and a binder wire (Fig. 15) is applied around the toe in the angle between the feather and the lip in position tohold the upper, as fully disclosed in Letters Patent No. 2,420,684. At a predetermined time inthe cycle the cams 5t arrive in positions to cause the two castings H3 and the stapling units i2 supported thereon to be moved'downwardl'y by. gravity to the positions determined by' engagement of the anvil members it with the insole, the cams further acting to swing. the castings outwardly about the axes of the rods 2d and thus to press the anvil members'yield ingly through the springs 63 against'th'einner face of the lip of the insole. When the stapling units are thus moved downwardly the gripper devices 240 on the castings i8 pull the stapleforming wire w also downwardly, the units al ready having within them the portions of the wire from which the next staples are to' be formed. 7

After the downward movements of the stapling units and the outward movements of the anvil members against the lip of the insole, while 'the wipers 2 are holding the upper in lasted position andare pressing the binder wire against the margin of the upper, the cycle of operations is automatically interrupted by stopping the rotation of the cam shaft It. Immediately prior to this pause in the cycle operating fluid is admitted to the cylinders iii to cause downward movements to be imparted to the pistons H8 while the machine is otherwise at rest. The first effect of the downward movements of the. pistons is to operate the toggles i211 through swinging movements of the levers I92 about the studs 2E2 as fulcrums, since these studs are locked against downward movements by the fingers 21c. In this manner the wire is cut, the staples are formed and the throats 8B are moved into positions to clamp the margin of the upper and the lip of the insole against the anvil members It. Near the end of the operative movements-ofthe toggles I20 the pins 88 begin to swing the arms 2min the directions to withdraw the fingers 210 from under the studs 2| 2, and by the time these toggles are" fully straightened the fingers have. been moved: far enough to permit the studs 2! 2: to start downwardly: (Fig. 11). Accordingly, by continued-movements of the pistons I13 the toggles i 52 are operated to drive the staples by swinging movements of the levers I92 about the studs 214 as fulcrums, the arms 282 being swung still farther 5 to carry the fingers 2H3 away from the studs H2 and also to carry the other fingers 2M5 thereon over the studs 2M (Fig. 14).

Immediately after the. driving of the staples the valve which controls the admission of fluid to the cylinders [88 is moved to exhaust position inthe' manner disclosed in Letters Patent No. 2,420,684, to cause the pistons ilfl to be returned by the springs 2 I 8. By such return of the pistons the toggles 252 are first returned, since the toggles I29 are locked by the fingers 2H3, after which these toggles are returned and the fingers 210 are moved to their initial positions under the studs 2 i2. Substantially at the end of the return movement of one of the pistons the switch 232 is closed to cause the machine to resume its cycle of operations. Shortly thereafter the cams 56 arrive in positions to cause the bell-crank levers 5G to be swung by the springs 58 in the directions to move the castings I8 and the stapling units [2 upwardly and to permit return movements of the units about the axes of the rods at. As the units are thus moved upwardly they receive the wire for the next staples, since the gripper devi"es 240 which move with the units slip along the wire and upward movement of the wire is prevented by the gripper devices 243. It will further be understood that in this final stage of the cycle other parts of the machine also are returned to their starting positions and the shoe is released.

Having described the invention, what I claim as new and desire to secure by Letters Patent of the United States is:

1. In a fastening-inserting machine, a throat member formed to guide a, fastening and movable toward a workpiece, a driver movable to drive the fastening into the workpiece, a reciprocatory member common to sa d throat member and driver for thus moving both of them by its movement in one direction, and controlling means arranged to act in opposition to the force of said reciprocatory member to hold the driver stationary until the throat member has been moved toward the workpiece.

2. In a fastening-inserting machine, a throat member formed to guide a fastening and movable toward aworkpiece, a driver movable to drive the fastening into the workpiece, a reciprocatory member common to said throat member and driver for thus moving both of them by its movement in one direction, a controlling device arranged to act in opposition to the force of said reciprocatory member to prevent the operative movement of the driver as the reciprocatory member first moves to operate the throat memher, and automatic means for moving said contro ling device into position to permit such movement of the driver at a predetermined time in the movement of the reciprocatory member.

In a f t rl g-in erti machine, a throat member for l to eniug and movable toward a workpiece, a driver movable to drive the fastening into the workpiece, reciprocatory T "er common to said throat mer and rim or for thus moving both of them by its movea controlling device arto the force of said to h thed ially t opera t, for moving controliing device to release the driver as the throat member completes its movement to assaebo 11 cause the driver then to be operated by further movement of the reciprocatory member.

{1. In a fastening-inserting machine, a threat member formed to'guide a fastening and movable toward a workpiece, a driver movable to drive the fastening into the workpiece, a reciprocatory member common to said throat member and driver for thus moving both of them by its movement in one direction, a controlling device arranged to act in opposition to the force of said reciprocatory member to prevent initially the operative movement of the driver, and means arranged to be operated by said reciprocatory memher for moving said controlling device into position to permit the movement of the driver as the throat member completesits movement to cause the driver then to be operated by further movement of the reciprocatory member.

I 5. Ina fastening-inserting machine, a throat member formed to guide a fastening and movable toward a'workpiece, a driver movable to drive the fastening into the workpiece, a reciprocatory member common to said throat member and driver for thus moving both of them by its movement in one direction, a controlling device arranged to act in opposition to the force of said reciprocatory movement to hold the driver initially against operative movement, and a pin and-slot connection between said device and the reciprocatory member for moving the device to release the driver as the throat member completes its movement.

6. In a fastening-inserting machine, a throat member formed to guide a fastening and movable toward a workpiece, a driver movable to drive the fastening into the workpiece, a fluid-operated piston common to said throat member and driver for thus moving both of them, a device arranged to act in opposition to the force of said piston to prevent initially the operative movement of the driver as the piston moves in one direction to operate the throat member, and means for moving said device into position to permit such movement of the driver before the piston completes its movement in that direction to cause the driver to be operated by the further movement of the piston.

'7. In a fastening-inserting machine, a throat member formed to guide a fastening and movable toward a workpiece, a driver movable to drive the fastening into the workpiece, a fluid-operated piston common to said throat member and driver for thus moving both of them by its movement in one direction, a device arranged to act in opposition to the force of said piston to hold the driver initially against movement as the piston moves to operate the throat member, and means for moving said device by the movement of the piston into position to release the driver and thus to cause the driver to be operated by further movement of the piston.

8. In a fastening-inserting machine, a throat member formed to guide a fastening and movable toward a workpiece, a driver movable to drive the fastening into the workpiece, a fluid-operated piston common to said throat member and driver for thus moving both of them by its movement in one direction, an arm mounted for swinging movement and provided with means arranged to act in opposition to the force of said piston to prevent initially the operative movement of the driver as the piston moves to operate the throat member, and a pin-and-slot connection between said arm and the piston for swinging the arm into 12 position to permit such movement of the driver as the throat member completes its movement.

9. In a fastening-inserting machine, a throat member formed to guide a fastening and movable toward a workpiece, a driver movable to drive the fastening into the workpiece, a reciprocatory member common to said throat member and driver for thus moving both of them by its movement in one direction, a lever connected between its ends to said reciprocatory member to be operated thereby, means connecting the opposite ends of said lever respectively to the throat member and the driver for operating them, and means for preventing the operative movement of the driver when the throat member is operated.

10. In a fastening-inserting machine, a throat member formed to guide a fastening and movable toward a workpiece, a driver movable to drive the fastening into the workpiece, a reciprocatory member common to said throat member and driver for thus moving both of them by its movement in one direction, a lever connected between its ends to said reciprocatory member to be operated thereby, means connecting one end of said lever to the driver, means connecting the other end of the lever to the throat member, and controlling means for causing the lever to swing on said first-named connecting means as a fulcrum to operate the throat member and thereafter on said last-named connecting means as a fulcrum to operate the driver.

11. In a fastening-inserting machine, a throat member formed to guide a fastening and movable toward a workpiece, a driver movable to drive the fastening into the workpiece, a reciprocatory member common to said throat member and driver for thus moving both of them by its movement in one direction, a lever supported between its ends on said reciprocatory member to be operated thereby, means connecting the opposite ends of said lever respectively to the throat member and the driver for operating them, and means for holding the end' of the lever which is connected to the driver against driveroperatin movement when the throat member is operated and for then releasing that end of the lever to cause the driver to be operated by further movement of the reciprocatory member.

12. In a fastening-inserting machine, a throat member formed to guide a, fastening and movable toward a workpiece, a driver movable to drive the fastening into the workpiece, a reciprocatory member common to said throat member and driver for thus moving both of them by its movement in one direction, a lever supported between its ends on said reciprocatory member to be operated thereby, means connecting the opposite ends of said lever respectively to the throat member and the driver for operating them, a device for holding the end of the lever which is connected to the driver initially against driveroperating movement, and means for moving said device to release that end of the lever at a predetermined time in the movement of the reciprocatory member. 7

13. In a fastening-inserting machine, a throat member formed to guide a fastening'and movable toward a workpiece, a driver movable to drive the fastening into the workpiece, a reciprocatory member common to said throat member and driver for thus operatively moving both of them by its movement in one direction and for returnin them by its reverse movement, and controlling means arranged to act in opposition to the force of said reciprocatory member to prevent the operative movement of the driver when the throat member is operated and thereafter to prevent return movement of the throat member when the driver is returned.

14. In a fastening-inserting machine, a throat member formed to guide a fastening and movable toward a workpiece, a driver movable to drive the fastening into the workpiece, a reciprocatory member common to said throat member and driver for thus operatively moving both of them by its movement in one direction and for returning them by its reverse movement, a controlling device arranged to act initially in opposition to the force of said reciprocatory member to prevent the operative movement of the driver, and means for moving said device into position to permit such movement of the driver as the throat member completes its movement, said device being constructed and arranged in that position to prevent return movement of the throat member when the driver is returned.

15. In a fastening-insertin machine, a stapleforming member movable to form a staple, a driver movable to drive the staple, a reciprocatory member common to said staple-forming member and driver for thus moving both of them by its movement in one direction, and controlling means arranged to act in opposition to the force of said reciprocatory member to delay the operative movement of the driver as the stapleforming member is operated.

16. In a fastening-inserting machine, a stapleforming member movable to form a staple, a driver movable to drive the staple, a reciprocatory member common to said staple-forming member and driver for thus moving both of them by its movement in one direction, a controlling device emcee arranged to act in opposition to the force of lifd reciprocatory member to prevent initially "the operative movement of the driver as the staple-forming member is operated; and means for moving said controlling device into position toT'permit such movement of the'gdriver as the staple-forming member completes its movement to cause the driver then to be operated by further movement of the reciprocatory member.

1' :17. In a fastening-inserting machine, a stapleforinin member movable to form a staple, a driver movable to drive the staple, areciproca- --'tory member common to said staple-forming #:member and driver for thus moving both of them aby its movement in one direction, a lever cong 'riected between its ends to said reiprocatory member to be operated thereby, means connect- "ging the opposite ends of said lever respectively the staple-forming member and the driver for pperating them, and means for holding the end fgof the lever which is connected to the driver i against driver-operating movement as the stapleffjorming member is operated and for then relljeasing that end of the lever to cause the driver to be operated by further movement of the reciprocatory member.

PHILIP E. BURBY.

iflle of this patent: UNITED STATES PATENTS gnuinber I Name Date 628,375 Wakefield .a July 4, 1899 e-1,s0'z,1vo Peterson May 26, 1931 

